Waste and overflow fitting



Patented Apr. 21, 1953 WASTE AND OVERFLQW FITTING Vernon P. Steele,Fairfield, Gonn assignor to Kenco Products Corporation, New York, N. Y.

Application December 16, 1943, Serial No. 651,633,

3 Claims.

This invention relates to a waste and overflow fitting. One of theobjects of this invention is to provide a waste and overflow fittingwhich is simple,

practical and thoroughly durable. Another Object'is to provide a fittingof the above type whichhas a minimum of individual parts, thus greatlyfacilitating the assembly thereof. Another object is to provide afitting of the above character which may be quickly and easily operatedby the user. Another object is to provide a fitting of the abovecharacter which is well adapted to withstand the wear and tear of harduse. Another object is to provide a fitting of the above character whosemanufacture will be economical both from the standpoint of labor andmaterials used. Still another object is to provide a fitting of theabove character which will not clog Or be damaged by foreign materialpassing through the drain valve. Other objects will be in part obviousand in part pointed out hereincertain parts" being shown in elevationand other parts being broken away for purposes of illustration Q Figure2 is a horizontal section on an enlarged scale taken on the line 2-2 ofFigure 1;

Figure 3 is a vertical section on an enlarged scale taken on the line 33of Figure 1; and

IFigure 4 is an elevation on an enlarged scale of a portion of the wasteand overflow fitting shown on the line 4- 4 of Figure 1.

Similar reference characters refer to similar parts throughout theseveral views of the draw- Referring now to Figure 1, thewaste andoverflow fitting, generally indicated at N, is designed for use 'withanysink, such as sink II, but is preferably used in the type of sink usedat soda fountains and other places where considerable waste matter maypass down thedrain. In 1%- tings of this type, considerable diflicultyhas heretofore been experienced because the valves very often becomeclogged with waste material, such 2 as strings from dish rags and mops.Also; solid foreign bodies, such as pieces of glass andgrit, very oftendamage or adversely afiect the efficient operation of thevalve-structure; It is accordingly another object of this invention toprovide a waste and overflow fitting, the operation oi which will not beaffected by either clogging materials, such as those mentionedabove, orgritty solid particles.

In general, the fitting includes a cup, generally indicated at [2, whichis connected by a pipe l3 to one of the openings in a T joint, generallyindicated at [4. A slotted resilient sleeve, generally indicated at 15,is slidably mounted within T joint l4 and acts as a slide valve to openor close the port through which waste enters the T joint from pipe [3.Sleeve 15 is moved up and down within joint 14 by means of a rod [6which is connected thereto and which extends upwardly through pipe 11and elbow I8. The upper end of rod I6 extends outwardly into the upperportion of the sink through the overflow openings formed in the surfaceof a flange nut, generally indicated at l9.

Specifically, the sink II has four walls, two of which are shown at I laand Nb and a bottom I la. A circular opening 2 0 is formed in the bottoml lc of sink I l, and the periphery of opening 20-is flanged downwardly.Cup I2 is positioned beneath opening 20 and is mounted on the sink Thethreads on the outer surface of the lower portion of flange nut 2|thread into complementary threads in the inner surface, of the upperportion of cup l2 to securely fasten the cup to the bottom of the sink.A gasket 22 is provided between the upper edge of cup I2, which flangesoutwardly, and bottom I la of sink H to prevent leakage at this point. Adetachable basket 43 is mounted on flange nut 21 to strain waste matterpassing through cup l2. Pipe H, which has an elbow l3a therein and anannular flange [3b formed on its upper end, is connected to the lowerportion 12a of cup l2 by a lock nut 23. A gasket fl is positionedbetween the upper surface of flange I 3b and the lower surface of cup I2 to prevent leakage at this point. The left-hand end of pipe 13 extendsinto the foot portion I la of T joint l4, and itis connected thereto bymeans of a look not 25 and a gasket 26.

The innersu'rfaceof the T portion Mb ofiT .joint 14 is machined toprovide a smooth surface "on which sleeve l'5'slide'si "Sleeve 1'5,which preferably has an external diameter the same as the internaldiameter of the head portion Nb of 3 T joint I 4, is preferably madefrom resilient brass tubing, and has a slot 21 (Figures 1 and 3)extending longitudinally thereof on the side of said sleeve positionedaway from the waste port 28 when in operation. After sleeve I isslotted, it is preferably spread, so that when in operation within Tjoint I 4, it is self-biasing when compressed, and exerts resilientpressure against the side walls of T ortion filth wliichholdsit-incontact with the inner surface of the T joint surrounding portopening 28. Slot 21 is directly opposite the vertical axis of port 28 sothat sleeve I5 is evenly pressed into engagement-with the side ofportion I4b in which port 28 is positioned. As will be seen from thesholwingsin Figs. 1 fandza of the drawings, the ends of valve member "I5are cut on the bias, that is at an angle. so that the slotted side ofthe member is appreciably'lo'nger than the opposite side thereof whichserves to close inlet port 28 of the T joint I4. Because of the; slantinends, member 45 will more readily out grease and other matter which mayline or -=,clog any part of the head section 14b of T v'oint l4 andinsure its r pid removal thr u h drain pip The lower .end of. .rod I5 isT-shaped and has a ,1' portion Ifia, the ends .of which are journaled inand secured to sleeve I5. The sides of sleeve I5 are pressed inwardly toform aligned, inverted bosses or dished portions .219 and 30 (Figures 2land 3) through which aligned holes 3.I and 32 are drilled. The Tportion 16a of rod I6 is .of

sufficient length so that when its ends are seated in-position in .holes.3I and .32, they slightly clear .the side walls .of the T ,portion I412of T joint i=4 (Figures 2 and .3). By providing inverted bosses.ordished portions in sleeve I5, it is strengthened,

and, at the same time, a simple, positive and inxpensive connection isformed between rod t6 andsleeve I5.

, A pipe I! having a flanged lower end 11a is connected to the upperendof .1 Joint portion Mb by means of alock 11141733.. A gasket 34 ispositioned between flange IIa and the r pperend of T head p rtion 14b toprevent leakage at this Point Th upper end of pipe ll extends, intoelbow I8 and is secured thereto by any suitable manner, such as bybrazing .35.. The right-hand opening inelbow 18, as viewed in Figure 1.vis

po oned in alignment with a circular overflow openin .35 formed in sidewall He of sink H. .A flange .nut 19 is threaded into the inside ofelbow l8 and secures elbow I8 to sink 1 l Gasket 38, which is positionedbetween sin-k .II and elbow I.8, prevents leakage around elbow 1*8.

, The flange nut I9 (Figures 1 and 4) has a solid center portion I So inwhich are formed a plurality of overflow openings 30 and .41. Opening Mis in the form of a cross, one of the slots of which is verticallypositioned. Rod 16 extends outwardly through the vertically positionedslot in ,will positively hold sleeve I5 in any adjusted position. Thus,it will be seen that, sleeve I may be adjusted to any desired positionin member I4 so that rate of drainage from sink II, may be at anydesired rate. Furthermore, it will be seen that the waste matter passingdown pipe I3 and through T joint 14 has a free passage so that it cannotclog the valve. Any waste matter collecting in port 28 will be shearedby the angular lower edge of valve I5, and any solid foreign grittymatter, such as glass, has a clear path so that it can pass downwardlyinto waste pipe 43. The particular type of connection between the sleeveand rod is of major importance, because, as pointed out hereinabove, theinverted bosses in the sleeve :materially strengthen it 'atlthe sidesand also providea simple and economical manner of connecting the rod tothe sleeve.

It will thus be seen that a thoroughly efficient and practical waste andoverflow fitting has been described in which the several objectsmentioned hereinabove, as well as many others, have been successfullyaccomplished.

As many possible embodiments may be made 01 the above invention, and asmany changes might be made in the embodiment above set forth, it is tobe understood that all matter hereinbefore set forthor shownin theaccompanying drawing is to be interpreted as illustrative and .not in alimiting sense. I.claim: ll. valve 'of the characterdescribed-comprising a T-shaped hollow casing, a sink drainage cross-arm,a'ournaled in said hollow valve .mem- 7 her at right anglesto the plane.of said vertical split and an operating ,stem fixedly connected tothceross-arm. A

.12.. The combination of a cylindrical valve chamber having a port inthe wall thereof; a spring metal expansible hollow valve .slidablymounted in said chamber vfor. controlling said port, said valve beingvertically slotted in an axial direction opposite .said port to permitexpansion thereof into sealing contact. with the wall of the chamber,aligned bosses in the valve at right angles to the plane of saidverticalslot, said bosses having aligned apertures; a rig-id cross-armjournaled in said bosses; and a rigid valve-actuating member integralwith said crossarm.

.3. The combination of a cylindrical valve chamber having .a port in thewall thereof; an open ended tubular valve member slidably mounted in.said chamber for controlling, said port, the wall of said tubular valvemember having integral spring biased en agement with the wall of thechamber, aligned bosses in the valve at right angles to the axis. of thevalve, said bosses References Cited in the file of this paten t UNITEDSTATES PATENTS 1.-

Number .Name -Date ":1

1,-332,-'793 Bloch Mar.2,1920 1,901,649 Huber Mar. 14-, 1-933

